Remove charging terminal on Roomba 980

One of the two charging terminals on the bottom of my Roomba 980 is pushed up into the Roomba. As such the it is unable to charge. I have tore the Roomba down (following a good portion of the motherboard teardown) and can get access to the charging terminal (its the positive teminal, red wire connected to it) but there is a grey cover over the charging terminal that I cannot get out. I have removed the screw, but it will not move (cannot push up from the bottom of device). Any ideas on removal of this?

Image should be attached.

Update: I finally managed to get it off. It looks like there has been some heat buildup on the positive terminal, which has actually melted the retaining bracket.